Chemistry
Give the molecular orbital description [e.g. sigma(sp3-sp3)] for each unique bond in the following structure. CH3NCHCCH I know how to draw the lewis structure and what a sigma and pi bond is, but I don't understand what the (sp3-sp3) part after the bond means or how you ...September 8, 2013 by ramire2

chemistry
How do the lewis structure and the positions of valence electrons affect the shape of the covalent compound? This is something for my labJanuary 25, 2010 by Lola

chemistry
What is the total number of valence electrons that must be shown in the Lewis structure for magnesium fluoride I think 16 but im not sureNovember 29, 2010 by samantha

chmistry
Given that \rm S is the central atom, draw a Lewis structure of \rm OSF_4 in which the formal charges of all atoms are zero.May 14, 2013 by Papayu Domu

chemistry
Hi, I am having troubles with Lewis structure and VSEPR theory of (ClPO3)2-.Do I use 2 bonds for each O and one for Cl, so its tetrahedral, or do I use 2 bonds for one O and one bond for the other two Os(making dative bonds)+ one for Cl and one pair of non-bonding, so its ...July 30, 2008 by michael

Chemistry
Can someone help draw/explain the Lewis Dot Structure for OPBr3. I've tried different things, but none of them seem to work. November 19, 2012 by M

CHEMISTRY
Given assumed valencies: H=1, N=3, & C=4 i am now required to draw the structural formulae of HYDROGEN CYANIDE and CYANOGEN. H:C:::N is the Lewis electron dot structure. If you want to use "sticks" as a bond instead of two electrons, one stick stands for two electrons. H-...February 7, 2007 by MARK

chemistry, polar or nonpolar
Why is NO3 nonpolar but CIF3 is polar? I looked at the lewis structures, they look similar, but why is one opposite. also, when something is polar or non polar, my teacher said I should see which atom is more electronegativity is higher and draw arrows towards it on a lewis ...January 25, 2009 by Anonymous

Chemistry
When I listen to my teacher explain things i get headaches and I cant concentrate, I just put dots everywhere on the lewis Dot Structure because its funny!!November 6, 2007 by Chelsea

chemistry
Draw the dominant Lewis structure for NO2+. Note, that this ion is isoelectronic with CO2. How many double bonds does this resonance structures have?November 4, 2014 by john

chemistry
draw a lewis structure for a resonance form of ClO2- showing the lowest possible formal charges and give the oxidation numbers of the atoms September 20, 2010 by Missy

Chemistry
Draw the best Lewis structure for NCCH2C(O)CH2CHO, a neutral molecule. Show all atoms, bonds, lone pairs, and formal charges. September 11, 2009 by Cathy

chemistry
(a) Construct a Lewis structure for O2 in which each atom achieves an octet of electrons. (Assign lone pairs where appropriate.) i am using marvin sketch and don't know what i need to showDecember 2, 2012 by Samantha

Chemistry
How do you know if you use a single, a double, or a triple bond when drawing the Lewis structure of a compound? How do you know if a bond is covalent or ionic?October 19, 2009 by Katie Y.

Chemistry
Consider the Lewis structure for the major resonance form of PCS–. (Note that carbon is the central atom.) The structure shows: a. A phosphorus-carbon triple bond and a carbon-sulfur single bond. b. A phosphorus-carbon double bond and a carbon-sulfur double bond c. A ...April 26, 2010 by Mary

chemistry
How would SiO4 Lewis structure look like? Each oxygen has 1 unfilled electron, so would there be 2 double bonds? Thanks in advance.May 5, 2009 by sh

louisiana purcahase
1.what was the Pickney treaty? 2.why did president jefferson want to buy new orleans from france? 3.why was napoleon willing to sell the entire louisiana purchase?(2reasons) 4.how much did the U.Spay for the Louisiana territory? 5.how much larger did the U.s get from this ...November 9, 2009 by sakura

Chemistry
Write the Lewis structure for each ion Al3+ Mg3+ Se2- N3- My question is why does Se2- get a bracket and 8 dots. And the same for N3-. I hope I'm making sense.September 11, 2011 by Monique

Chemistry
In 3-4 sentences, identify how the geometric structure of NF3 is different than that of NF4+. Explain how the geometry affects the ability of the molecules to experience a dipole effect. (I did the Lewis diagrams for both but I don't know what to do after that)May 21, 2015 by Madison

Chemistry
In a closed container 1L of chlorine reacts with 1L of nitrogen and 1L of hydrogen. I need to give lewis structure, vsepr, box notation for valence electrons etc. (i know how to do this) But I'm doubting on what the reaction equation would be.January 15, 2016 by Nicolas

Chemistry
I need help with the Lewis Dot Structure. I'm so lost. The problems I have and need help with are 1) H2NCH3 2) C3H6 3)NO2-ion 4) H3CSCH2F 5) NCl3 6) H2NCOOH 7)C3H7OHMay 23, 2012 by Brittany

ap chem
consider the molecules PF3 and PF5. b]is the PF3 molecule polar or is it nonpolar. explain C] on the basis of bonding principles, predict whether each of the following compounds exists. In each case explain your prediction. (i) NF5 (ii) AsF5 2. explain why the H-N-H bond angle...January 23, 2007 by Emily

chemistry
Draw a lewis structure for BrO4- in which all atoms have the lowest formal changes. Indicate the values of nonzero formal charges and include lonepair electrons.January 19, 2009 by Jack

Chemistry
Draw Lewis Structure for BrO3^- The textbook answer involves a central Br atom with one lone electron pair and five shared pairs (two double bonds and one single bonds). This gives Br twelve electrons rather than the typical eight. I understand that some atoms like Br have ...August 6, 2012 by Parker

Chem?
Which of these elements can't have an expanded octet in a Lewis structure? P,O,Br,N,S,C,B,Si I think its O,C,B,N. Are elements that don't have a d oribial arent supposed to be included? November 14, 2007 by Anonymous

chemistry
I have the lewis structure for ICL3 and SF4, it is asking for the general formula for ICL3? Is this the empirical formula if so how would I figure out how to do thatNovember 14, 2010 by Sarah

Organic cChemistry
For each pair of molecules or ions, select the stronger base and write its lewis structure a) CH3S- or CH3O- b) CH3NH- or CH3O- c) CH3COO- or OH- d) CH3CH2O- or H- e) NH3 or OH- I would really appreciate the help!October 10, 2013 by Kourtnei

Chemistry
Draw the lewis dot structure showing what happens during the reaction Lithium and Chlorine produce Lithium Chloride. how do you draw this, please help .February 13, 2011 by Tina

AP Chem
A valid Lewis structure of __________ cannot be drawn without violating the octet rule. Answer: BeH2 Why would BeH2 break the octet? January 13, 2013 by Anon

Chemistry
How would I go about creating a Lewis Dot structure for the Calcium Carbonate and Magnesium Hydroxide? I know how to do it for any compound with two elements such as SF5, but I don't know how to approach it when there's a polyatomic ion involved and there are three elements. November 6, 2012 by Ezra

chemistry,
,I NEED TO DRAW A LEWIS STRUCTURE for C2n2,cyanogen,and to state the noble gas,i know the answer is neon,but i have far to many electrons and am getting the gas argon,please help :N:::C:C:::N: please where do u think i am going wrong I don't know. You didn't show any work. C ...March 3, 2007 by jane

chemistry
In 1999, chemists working for the Air Force Research Laboratory reported that they had produced a compound containing an unusual ion with the formula N5 +. This ion had not been expected to exist, and its instability makes it both diffi cult and dangerous to prepare. Consider ...April 20, 2012 by aydin

chem
A molecular compound is composed of 58.8% Xe, 7.2% O, and 34.0% F, by mass. If the molecular weight is 223 g/mol, what is the molecular formula? Draw the correct Lewis structure. Predict the molecular geometry using the VSEPR model.December 13, 2010 by chemistry

Chemistry
# Electron Pairs # Lone Pairs Electronic Geometry Molecular Geometry Lewis Structure Sketch of Shape I need to do the above things for SBr6 and BrCl5. If anybody can help that would be great!April 26, 2011 by Jake

AP Chemistry
The Lewis structure of shows that the central phosphorus atom has __________ nonbonding and __________ bonding electron pairs. Is the answer 1, 3 Is it 1 because it asked for PAIRS- so there are two electrons not bonded- so one pair?January 13, 2013 by koolchem

AP Chemistry
The Lewis structure of shows that the central phosphorus atom has __________ nonbonding and __________ bonding electron pairs. Is the answer 1, 3 Is it 1 because it asked for PAIRS- so there are two electrons not bonded- so one pair?January 13, 2013 by koolchem

AP Chemistry
The Lewis structure of shows that the central phosphorus atom has __________ nonbonding and __________ bonding electron pairs. Is the answer 1, 3 Is it 1 because it asked for PAIRS- so there are two electrons not bonded- so one pair?January 13, 2013 by koolchem

chemistry
Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (N-O-N single bond) and 2 other oxygens are bonded to each N. How many equivalent resonance structures are there that satisfy the octet rule and where O makes at most 2 bonds?November 4, 2014 by john

chemistry
Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (N-O-N single bond) and 2 other oxygens are bonded to each N. How many equivalent resonance structures are there that satisfy the octet rule and where O makes at most 2 bonds?November 6, 2014 by K

10th grade
I really need help! I need to know how a Table with polyatomic listed looks like. And Rules for naming Covalent Compounds (mono, di, tri,..) and How to find Lewis structure using the periodic table November 16, 2008 by Melissa

AP Chemistry
The Lewis structure of PF3 shows that the central phosphorus atom has __________ nonbonding and __________ bonding electron pairs. Is the answer 1, 3 Is it 1 because it asked for PAIRS- so there are two electrons not bonded- so one pair? January 13, 2013 by Anon

chm
The Lewis dot structure of ammonia, NH3, reveals that it has one lone pair of electrons and three bonds (each to a hydrogen) around the central nitrogen atom. According to VSEPR theory, what molecular shape will it have? i thought it was tetrahedral but its wrong. what and why...February 18, 2013 by luck

chemistry
how do u draw the lewis structure for something like CO -2 over 3. do u add 2 electrons on to the oxygen when yur finding the number of valence electrons cuz that's wat i thought u did but then i got all those questions wrong so wat do u doOctober 4, 2007 by michelle

chemistry
what is the molecular geometry of trans-difluroethylene: trans-C2H2F2? I know how to draw the lewis structure but I'm not sure how to find the molecular geometry. I think it's a tetrahedral May 24, 2008 by Cabel

Chemistry
Choose the true statements regarding the charge-minimized Lewis structure(s) of the BrO2- ion. (selet all that apply) a. There is only one charge-minimized structure for this ion. b. There are two charge-minimized resonance structures for this ion. c. The formal charge on the...October 5, 2008 by Lindsay

Gen chem 2
D-Glucose, C6H12O6, is an aldohexose sugar which occurs commonly in nature. In a text or reference book look up "-D-(+)-Glucose and write its correct, complete Lewis structure. Then “parcel” e’s to determine the correct (O) no. for each C atom in this molecule. I am so ...July 7, 2008 by Elisa

physics
Carl Lewis set a world record for the 100.0-m run with a time of 9.86 s. If after reaching the finish line, Mr. Lewis walked directly back to his starting point in 90.9 s, what is the magnitude of his average velocity for the 200.0m?February 22, 2013 by Pearl

chemistry
how does a hydrate form? Generally water adds to a metal ion to the d,s, and or p orbitals in which the metal acts as a Lewis acid. I can reword that somewhat if you haven't studied about Lewis acids.January 7, 2007 by daniela

chemistry
i do not understand how to do these and i have a question on my test tomorrow on this stuff can someone explain to me how to do this? for each of the following molecules draw the lewis structure, determine the shape, determine the polarity, and determine the kinds of ...May 18, 2011 by brittney

Chemistry
Which one of the following pairs of reactants would react together in a Lewis Acid/Lewis Base reaction? a. KOH and HNO2 b. NaOH and HCl c. CH3COOH and HF d. Ag+ and NH3 e. HClO and NH3February 27, 2011 by Brian

chemistry
Enter a chemical equation for the ionization in water of CH3CH2COOH. Is the acid strong or weak? Select the Lewis structure for the ion formed by the acid when it ionizes. Chemical equation: Note: Include physical states. November 9, 2015 by y

chemistry
Which of the following is a Bronsted-Lowry base but not a Lewis base? a) H2O c) CN– e) all choices are both a B/L and Lewis base. b) CO3–2 d) NH3 need help deciding March 17, 2012 by bob

chemistry
Consider the compound NOCl. In the lewis dot structure, which element should be the central atom? Choose from following. N,O,Cl,both N or O could be in middle, both N or Cl could be in the middle,both O or Cl could be in middle,or all the elements could be in middle.June 1, 2013 by Anonyms

Chemistry
In the Lewis structure for SF4, there are: a. 12 electrons surrounding the S. b. 10 electrons surrounding the S c. a total of 42 valence electrons. d. Both a and c are correct. e. None of the above are correct September 10, 2010 by catherine

biology
I need help finding diagrams of the leaf structure, stem structure and root structure of a lilac flower with explanations. Sites would helpDecember 13, 2014 by kitty

Chemistry
When it says, " Draw a Lewis diagram for each of the following. " a)One atom of each of the elements in the second period. Is it asking me to draw a Lewis diagram for Lithium and Beryllium?July 8, 2010 by Derrick

Chemistry
I have to write the exact lewis electron dot structure for para xylene C8H10. I tried writing it out but it doesnt work out proerly. C is supposed to have 31 electrons and H is supposed to have 10 totaling 42. i was doing research and it says that it is aromatic and i tried to...November 29, 2009 by Sam

science
how much did the first microscope magnify I think it was 40x lewis is your last name smith lewis is your last name smith September 24, 2006 by lewis

Chemistry
Hi. Is PO4(3-) polar or non-polar? Why or why not? Thanks! Look up the electronegativity of P and O. I think I remember that O is about 3.5 and P is about 2.1; therefore, each P-O bond is somewhat polar. Thus, the ion will be polar unless the Lewis structure (electron dot ...November 23, 2006 by Sally

chemistry
Which of the following statements is true regarding the Lewis structure for methylamine, CH3NH2? a) There will be an unshared pair of electrons on the nitrogen atom. b) There will be three covalent bonds to the carbon. c) Nitrogen will form a double bond with the adjacent ...September 9, 2010 by Sawyer

chemistry
what transition metal complex is responsible for transporting oxygen in our blood? Also, what is its structure? The transition metal (there are several transition series---I assume you are referring to the 3d transition metals) is iron. As to its sturcure, the iron itself has ...April 17, 2007 by Bob

Chemistry
Why does carbonate have a -2 charge and not -1? Why does phosphate have a -3 charge and not -2 or -1? Why does nitrate have a -1 charge and not -2 or -3? My answer: Based on the Lewis structure, these ions need a certain number of electrons in order to be stable...the octet ...November 22, 2015 by Christina

Chemistry
Why does carbonate have a -2 charge and not -1? Why does phosphate have a -3 charge and not -2 or -1? Why does nitrate have a -1 charge and not -2 or -3? My answer: Based on the Lewis structure, these ions need a certain number of electrons in order to be stable...the octet ...November 22, 2015 by Christina

math
beth and lewis buy the same amount of fish pellets if beth feeds her fish 14 pellets each day a conntainer of pellets will last 20 days if lewis feeds his fish 8 pellets each days how many days will the container of pellets last lewisNovember 8, 2012 by Anonymous

Chemistry
How do you find the number of valence electrons in a molecule? Do I need to use the Lewis structure diagram to find out? Please help! I need to the total number of valence electrons for SiH4, H2SO4, CCl4, BF3 and I don't know how!February 10, 2010 by Anonymous

Chemistry
Use Lewis Symbols to show the reaction of atoms to form arsine, AsH3. Indicate bonding pairs in the Lewis formula of AsH3 are bonding and which are lone pairs.November 30, 2007 by Lauren

English
What is the purpose of hierarchical structure in a media message? Hierarchical structure helps the reader weed out unimportant information. Hierarchical structure helps the author organize his or her writing. Hierarchical structure helps the reader determine the relationship ...December 22, 2014 by Anonymous

chemistry
I have to draw the QMM of CL2C2. For the Lewis structure i think that the two C ayoms form a triple bond and the Cl atoms form single bonds. Therefore i think that the central C atom hybridizes into sp. if this is correct, my question is how do i know which p orbital on C to ...April 29, 2009 by lyne

Chemistry
#1) The Lewis structure of PF3 shows that central phosphorus atom has ___ nonbonding and ___ bonding electron pairs. #2) How many equivalent resonance forms can be drawn for CO3^-2? (carbon is the central atom) #3) The bond angle in NF3 is slightly less than ___? #4) Sample of...May 21, 2009 by Diana

chemistry
Sixteen electrons are present in the Lewis structure of which of the following molecules? CO2 N2O SO2 more than one correct response no correct response If more than one correct response please show all correct answers thankFebruary 23, 2014 by Johnny

Chemistry
Are Lewis acids and bases defined using dissociation, electron pairs, hydrogen ions, or hydroxide ions? Does a Lewis acid accept, produce, or donate hydrogen ions, or does it an electron pair acceptor?March 31, 2010 by tori

chemistry
Most organic acids can be represented as RCOOH, where COOH is the carboxyl group and R is the rest of the molecule. (For example, R is CH3 in acetic acid, CH3COOH). (a) Draw a Lewis structure for the carboxyl group. (b) Upon ionization, the carboxyl group is converted to the ...September 26, 2011 by Amber

Chemistry
Draw the best Lewis structures for NO+, NO2-, NO2H, and NO3-. Based on the Lewis structures, list all of the the N-O bonds lengths in order of shortest (1) to longest (5). N-O bond length in >>> 2 N-O double bond in NO2H >>> 1 N-O bond length in NO3- >&gt...December 8, 2015 by Dan

English/Language Arts
Which of the following parenthetical citations is placed and punctuated correctly? A)The only casualty on Lewis and Clark's trip died from appendicitis (Davis 104). B)(Davis, 104) Kenneth Davis explains that the only casualty on Lewis and Clark's trip died from appendicitis. C...May 19, 2016 by Mike

AP Biology
The relatioship of structure to funtion is one of the major themes in biology. Describe the structure of enzymes and then expliain how the function (catalysis) is related to structure. Aslo discuss some factors that may affect the activity of the enzyme and how they do so.September 30, 2007 by Kristen

Math Word Problem
During the summer throughout high school and for a year after, Lewis worked as a lifeguard at the beach. In that 5-year period, he saw a total of 461 dolphins swimming in the distance. About how many did Lewis spot per summer in the 5 summers he worked?October 10, 2013 by Jared

Chemistry
Use VSEPR theory to predict the molecular geometry around either carbon atom in acetylene, C2H2. The Answer is linear. How do you figure out the answer is linear? I know you draw the lewis structure but when I drew it I thought the answer would be tetrahedral, because the ...April 20, 2010 by Danielle

Chem
How would a Lewis Dot Structure be drawn for CO +1? I can't seem to get it to satisfy the octet rule and have the right number of electrons. How many electrons do you have? 1C = 1 x 4 = 4 electrons. 1O = 1 x 6 = 6 electrons. Total is 10 electrons. -1 electron because you have ...December 5, 2006 by Alyssa